[quant] Add op benchmark for CPU FakeQuantizePerChannel with float zero_points (#65241)
Summary: Pull Request resolved: https://github.com/pytorch/pytorch/pull/65241
Test Plan: Imported from OSS
Reviewed By: jingsh
Differential Revision: D31150087
Pulled By: b-koopman
fbshipit-source-id: a00d4995841eee81305d0007c908473cc3d5a727
